:root{
    --pic-view-bg: url("");
}
::-webkit-scrollbar{ display: none; }
html,body{ height:100%; width: 100%; margin: 0;padding: 0; overflow: auto;}
body{ background: #000 var(--pic-view-bg) fixed; }

input{ display: none; position: fixed; right: 0; width:68px; opacity: 0.8; }
input[type=file] { color: transparent; width: 68px; overflow: hidden; }
/*右键菜单*/
.epMenu{
    display: none;
    width:120px; background:#f0f0f0; position:fixed; left:0; top:0; transform: translate(-50%, -100%); 
    -webkit-transform: translate(-50%, -100%); -moz-transform: translate(-50%, -100%); -o-transform: translate(-50%, -100%);
}
.epMenu a{ display:block; border-top:1px solid #e0e0e0; border-bottom:1px solid #fff; font-size:14px; text-align: center; }
.epMenu a:hover{ background:#fff; }